Although Prometheus, also starring Michael Fassbender, Charlize Theron and Guy Pearce, was given an R rating in the US, which restricts people under 17 from seeing it without an accompanying parent, it was given an M rating in Australia.

The Australian Classification Board originally classified Prometheus as MA15+, meaning under 15s needed to be accompanied by a guardian.

But that was dropped to M on appeal by distributor Fox to the Australian Classification Review Board so it could be seen by younger viewers without an accompanying adult.

The 15-year-old was watching the film at Jindabyne, in the state’s south, when he passed out during the scene and began having a seizure.